allow clicking on text or icon to trigger expand

app/assets/javascripts/notes.js

@@ -923,7 +923,7 @@ require('vendor/task_list');
     };
     Notes.prototype.toggleCommitList = function(e) {
-      const $element = $(e.target);
+      const $element = $(e.currentTarget);
       const $closestSystemCommitList = $element.siblings('.system-note-commit-list');
       $element.find('.fa').toggleClass('fa-angle-down').toggleClass('fa-angle-up');